WO2019071783A1 - Procédé de commande d'affichage et appareil informatique - Google Patents

Procédé de commande d'affichage et appareil informatique Download PDF

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Publication number
WO2019071783A1
WO2019071783A1 PCT/CN2017/115289 CN2017115289W WO2019071783A1 WO 2019071783 A1 WO2019071783 A1 WO 2019071783A1 CN 2017115289 W CN2017115289 W CN 2017115289W WO 2019071783 A1 WO2019071783 A1 WO 2019071783A1
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gray scale
original
data group
scale data
hue
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PCT/CN2017/115289
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English (en)
Chinese (zh)
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单剑锋
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惠科股份有限公司
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Priority to US15/751,099 priority Critical patent/US10685610B2/en
Publication of WO2019071783A1 publication Critical patent/WO2019071783A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/068—Adjustment of display parameters for control of viewing angle adjustment
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • the present application relates to the field of liquid crystal display technology, and in particular, to a display driving method and a computer device.
  • liquid crystal display devices such as liquid crystal televisions and liquid crystal displays have become popular, and should be widely used as places for information display, such as houses, shopping malls, office buildings, etc., for people's production and life. Convenience.
  • the red, green and blue color side view characters are more severe than other color systems, and, due to the gray scale liquid crystal
  • the fast saturation enhancement of the displayed viewing angle luminance ratio makes the difference between the positive viewing angle brightness and the side viewing angle brightness of the lower gray level larger.
  • a display driving method includes:
  • a computer device comprising a memory, a processor, and a computer program stored on the memory and operative on the processor, the processor executing the computer program to implement the following steps:
  • the original gray scale data group into a first gray scale data group and a second gray scale data according to the original gray scale data group of each of the pixel units, the average gray scale of each hue, and the original light source intensity Grouping, and determining the intensity of the driving light source of each hue in the preset display area;
  • the gray level of each hue of the first gray level data group is the maximum gray level in the original gray level data group; the gray level of each hue of the second gray level data group is 0 or greater than the The minimum gray level in the original grayscale data set.
  • a display driving method includes:
  • the original gray scale data group into a first gray scale data group and a second gray scale data according to the original gray scale data group of each of the pixel units, the average gray scale of each hue, and the original light source intensity Grouping, and determining the intensity of the driving light source of each hue in the preset display area;
  • the gray level of each hue of the first gray level data group is the maximum gray level in the original gray level data group; the gray level of each hue of the second gray level data group is 0 or greater than the a minimum gray scale in the original gray scale data set; determining, when displaying the second gray scale data set, setting a driving light source intensity of the maximum gray scale corresponding hue of the average gray scale of the preset display area to 0 .
  • the display driving method and the computer device by decomposing the original gray-scale data group into the first gray-scale data group and the second gray-scale data group, that is, the original frame signal corresponding to each pixel unit is multi-frame combined.
  • the gray scale of each hue of the first gray scale data set is the maximum gray scale in the original gray scale data group; the gray scale of each hue of the second gray scale data set is 0 or greater than the original The minimum gray level in the grayscale data set.
  • the gray scale data of each hue in the original gray scale data group is displayed according to the data larger than the minimum gray scale in the original gray scale data group or directly not displayed, but in two groups.
  • the data color of the smallest gray scale in the original gray scale data set is not included in the middle, so that the difference in brightness of the color of the low gray level of the side view relative to the hue of the whole pixel unit is reduced, so that the side view character is close to the front view character phase, and the low color shift display is achieved.
  • the quality of the picture is presented.
  • FIG. 1 is a schematic diagram showing the internal structure of an execution device of a display driving method and apparatus according to an embodiment
  • FIG. 2 is a flow chart of a display driving method according to an embodiment
  • FIG. 3 is a flow chart of a display driving method of another embodiment
  • FIG. 4 is a specific flow chart of a step of the display driving method of FIG. 2 or FIG. 3;
  • FIG. 5 is a configuration diagram of a liquid crystal display driving device according to an embodiment
  • FIG. 6 is a configuration diagram of a liquid crystal display driving device according to another embodiment
  • Fig. 7 is a view showing a unit configuration of a module of the liquid crystal display driving device of Fig. 5 or Fig. 6.
  • FIG. 1 is a schematic diagram showing the internal structure of an execution device in an embodiment.
  • the execution device may be a terminal that implements a display driving method.
  • the execution device includes a processor, a storage medium, an internal memory, an output device, and an input device connected through a system bus.
  • the storage medium of the execution device stores an operating system and a computer application program of the liquid crystal display driving device, and when the computer application program of the liquid crystal display driving device is executed by the processor, a display driving method is implemented.
  • the processor is configured to provide computational and control capabilities to support the operation of the entire execution device.
  • the internal memory of the execution device provides an environment for the operation of the liquid crystal display driver in the storage medium, wherein the internal memory can store computer readable instructions that, when executed by the processor, cause the processor to perform a display drive method.
  • the output device of the execution device can be a display screen, and the display screen can be a liquid crystal display.
  • the input device of the execution device may be a touch layer covered on the display screen, a button, a trackball or a touchpad disposed on the outer casing of the execution device, or an external keyboard, a touchpad or a mouse. It will be understood by those skilled in the art that the structure shown in FIG.
  • FIG. 1 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the execution device to which the solution of the present application should be set. More or fewer components than those shown in the figures may be included, or some components may be combined, or have different component arrangements.
  • the present application provides a display driving method, including:
  • S120 Acquire an original grayscale data group of each pixel unit in which the content to be displayed is in a preset display area.
  • the liquid crystal display is composed of a plurality of RGB sub-pixel units, and each group of RGB sub-pixel units is referred to as a pixel unit, and each pixel unit represents an image signal.
  • the original gray scale data set of each pixel unit includes gray scales of three colors of R, G, and B, as can be represented by (R n, m_i, j , G n, m_i, j , B n, m_i, j )
  • the display area of the liquid crystal display can be divided into a plurality of display areas, each display area includes at least two pixel units, and the size of the display area can be defined by itself, and can be divided into N (columns) * M (rows) by pixels on the liquid crystal display.
  • the display driving method can be implemented by sequentially displaying each display area as a preset display area in a preset order.
  • S130 Determine an average gray level of each hue in the preset display area according to the original gray level data group.
  • the average gray level of each hue in the preset display area may be determined according to the original gray scale data group of each pixel unit in the preset display area.
  • the average gray scale of each hue in the preset display area can be obtained by summing the hue of the original gray scale data group of each pixel unit and then dividing by the number of pixel units in the preset display area.
  • the average grayscale group of the preset display area For example, (Ave_R n,m , Ave_G n,m , Ave_B n,m ) can be used to represent the average gray scale group of the display area of the nth column m rows.
  • S140 Acquire an original light source intensity of each hue in the preset display area of the content to be displayed.
  • the original light source intensity of each hue of the content to be displayed in the preset display area may be obtained by searching the data table, that is, the original light source intensity group of the content to be displayed in the preset display area.
  • the data table can be pre-stored in the memory, and can be directly used when needed; or the data table can be obtained when needed, thereby obtaining the original light source intensity group of the content to be displayed in the preset display area.
  • the (A n, m_R , A n, m_G , A n, m_B ) can be used to obtain the original light source intensity group in the display area of the nth column m row of the content to be displayed.
  • S150 Decompose the original gray scale data group into the first gray scale data group and the second gray scale data group according to the original gray scale data group of each pixel unit, the average gray scale of each hue, and the original light source intensity, and determine the preset The intensity of the driving light source for each hue in the display area.
  • the gray scale of each hue of the first gray scale data set is the original gray The maximum gray level in the order data group; the gray level of each hue of the second gray level data group is 0 or greater than the minimum gray level in the original gray level data set.
  • the R, G, and the two frames in the preset display area may be adjusted according to the average gray level of each hue of each pixel unit in the preset display area (eg, Ave_R n, m , Ave_G n, m , Ave_B n, m ) B drives the intensity of the light source.
  • the intensity of the original light source of each of the R, G, and B hue in the display region (n, m) is A n, m_R , A n, m_G , A n, m_B will be adjusted to A' n, m_R , A' n, m_G , A' n, m_B .
  • the display driving method is configured to decompose the original gray scale data group into the first gray scale data group and the second gray scale data group, that is, the original frame signal corresponding to each pixel unit is multi-frame combined, and the first gray scale data group
  • the gray scale of each hue is the maximum gray scale in the original gray scale data set; the gray scale of each hue of the second gray scale data set is 0 or greater than the minimum gray scale in the original gray scale data set.
  • the gray scale data of each hue in the original gray scale data group is displayed according to the data larger than the minimum gray scale in the original gray scale data group or directly not displayed, but in two groups.
  • the data color of the smallest gray scale in the original gray scale data set is not included in the middle, so that the difference in brightness of the color of the low gray level of the side view relative to the hue of the whole pixel unit is reduced, so that the side view character is close to the front view character phase, and the low color shift display is achieved.
  • the quality of the picture is presented.
  • the method further includes:
  • S160 Acquire an original display duration of the original gray scale data group.
  • S170 Continuously display the first gray scale data group and the second gray scale data group in the original display duration.
  • the gray scale data group of the original frame corresponding to one pixel unit is decomposed into the first gray scale data group of the two frames (the first frame and the second frame) corresponding to the pixel unit and
  • the second gray scale data group sequentially presents a combination of two frames in time, that is, the first gray scale data group and the second gray scale data group are sequentially displayed.
  • the original display duration is divided into two time segments, one of which displays the first grayscale data set and the other of which displays the second grayscale data set.
  • the time lengths of the two time periods are the same, that is, half of the original display duration.
  • the original gray scale data group is decomposed into the first gray scale data group and the second gray scale data group according to the original gray scale data group of each pixel unit, the average gray scale of each hue, and the original light source intensity, and
  • the steps of determining the intensity of the driving light source of each hue in the preset display area including:
  • S251 Determine the driving light source intensity of each hue in the preset display area according to the average gray level of each hue.
  • the maximum gray level in the average gray level is determined according to the average gray level in the preset display area, which is the largest average gray level sub-pixel of which R, G, and B are dominant, and the large size in the preset display area is determined.
  • the maximum gray level of a part of the pixel units is the hue of one of the R, G, and B sub-pixels. In this way, the hue corresponding to the maximum gray level among the average gray levels of the respective hue in the preset display area can be determined, and further, the driving light source intensity of each hue in the preset display area is determined.
  • the display area is a combination of red hue.
  • the average gray levels Ave_R n,m , Ave_G n,m , Ave_B n,m of each of the R, G, and B hue are decomposed into two frame gray-scale combinations, which are respectively R1G1B1 combination 1 (first gray-scale data set) and R2G2B2 combination 2 (second gray scale data set).
  • A' n,m_G 2*TG(B)*A n,m_G /(TG(A)+TG(B));
  • the brightness ratio corresponding to the average gray level of each of the R, G, and B hues in the preset display area can be obtained by looking up the table, which are TR(A), TG(B), and TB, respectively.
  • C the first The ratio of the brightness of each color of the grayscale data set can be obtained by looking up the table, which is TR(A), TG(A), and TB(A).
  • the brightness ratio is the ratio of the gray level of the corresponding hue to the full gray level. It can be understood that these data tables can be pre-stored in the memory, and the corresponding brightness ratios can be directly obtained when needed; or the data tables can be obtained when needed, thereby obtaining the brightness ratios.
  • S253 Decompose the original gray scale data group into a first gray scale data group and a second gray scale data group according to the original gray scale data group of each pixel unit, the original light source intensity, and the driving light source intensity.
  • the first gray level data group of the first frame corresponding to the pixel unit may be determined.
  • the brightness ratio group includes the brightness ratio of each hue; understandably, the brightness ratio is the ratio of the gray level of the corresponding hue to the full gray level.
  • the gray scales of the respective hue in the first gray scale data group and the second gray scale data group may be determined by looking up the table.
  • the frame corresponding to the pixel unit includes the original frame corresponding to the pixel unit before the decomposition, and the first frame and the second frame corresponding to the pixel unit after the decomposition.
  • the step of decomposing the original gray scale data group into the first gray scale data group and the second gray scale data group according to the original gray scale data group of each pixel unit, the original light source intensity, and the driving light source intensity includes:
  • the maximum gray level of each hue of the pixel unit is used as the gray level of each hue of the first gray level data group.
  • the maximum gray level in the original gray-scale data group of the pixel unit R i,j , G i,j ,B i,j is A1
  • the pixel unit is It is decomposed into a combination of two frames (the first frame and the second frame) by a frame (the original frame) , and the gray scales of the respective hues of R i,j , G i,j ,B i,j are decomposed.
  • the first gray scale data set R1 i, j G1 i, j B1 i, j and the second gray scale data set R2 i, j G2 i, j B2 i, j respectively .
  • the ratio of the gray scale of each hue of the first gray scale data group to the full gray scale can be determined by the lookup table as TR (A1), TG (A1), and TB (A1), respectively.
  • the original light source intensities A n,m_R , A n,m_G ,A n,m_B and the driving light source intensities A′ n,m_R ,A′ n,m_G ,A are combined with the R, G and B hue of the preset display area.
  • the gray scale of each hue of the second gray scale data set is relative to the full gray scale brightness ratio TR(R2 i,j ), TG(G2 i,j ), TB(B2 i, j ), so that the gray scale of the hue can be further determined according to the brightness ratio by means of table lookup.
  • the gray scale of each hue of the second gray scale data set is relative to the full gray scale luminance ratios TR(R2 i,j ), TR(G2 i,j ), TB(B2 i,j ) Calculated as follows:
  • the gray scale of each of the pixel units R' i,j , G' i,j ,B' i,j is changed from 1 frame (original frame) to 2 frames (first frame and second picture)
  • the combination of the boxes corresponds to the first gray scale data set R'1 i, j G'1 i, j B'1 i, j and the second gray scale data set R'2 i, j G'2 i, respectively j B'2 i,j .
  • the ratio of the gray scales of the gray scales of the first gray scale data group to the full gray scales may be determined by the lookup table as TR (B2), TG (B2), and TB (B2), respectively.
  • the original light source intensities A n,m_R , A n,m_G ,A n,m_B and the driving light source intensities A′ n,m_R ,A′ n,m_G ,A are combined with the R, G and B hue of the preset display area.
  • the brightness ratio TR(R'2 i,j ) and TG(G'2 i,j ) of the gray scale of each hue of the second gray scale data group with respect to the full gray scale can be determined.
  • TB(B'2 i,j ), so that the gray scale of the hue can be further determined according to the brightness ratio by means of table lookup.
  • the gray scale of each hue of the second gray scale data set is relative to the full gray scale luminance ratio TR(R'2 i,j ), TG(G'2 i,j ), TB(B'
  • the formula for 2 i,j ) is as follows:
  • the second gray scale data group corresponding to the pixel unit (R'2 i, j G' 2 i,j B'2 i,j )
  • the ratio of the gray scale of each hue relative to the full gray scale is determined by the above formula. There may be less than 0 or greater than the preset maximum value. Therefore, the calculation must be performed.
  • the gray scale of each hue of the second gray scale data set is relative to the full gray scale brightness ratio TR(R'2 i,j ), TG(G'2 i,j ), TB(B'2 i,j ) The value is judged. If less than 0, the brightness ratio is set to 0, and if it is greater than the preset maximum value Y, the brightness ratio is set to the preset maximum value Y.
  • the step of determining the intensity of the driving light source of each hue in the preset display area comprises: determining that when the second gray level data set is displayed, the preset display area is The maximum gray scale of the average gray scale corresponds to the driving intensity of the hue of the hue set to zero.
  • the maximum gray level of the average gray level is used as the average gray level of a hue in the preset display area, the hue corresponding to the maximum gray level of most pixel units in the preset display area is consistent with the hue corresponding to the maximum gray level.
  • the maximum gray level is simultaneously used as the gray level of each hue of the first gray level data group, thereby determining the maximum of the average gray levels of the preset display area when displaying the second gray level data set
  • the gray light source corresponding to the hue of the driving light source is set to 0, which has little effect on the overall display, and at the same time can achieve the effect of energy saving and emission reduction.
  • the order is the same, where A>B>C.
  • the red hue of the first gray scale data set drives the light source intensity A'n
  • the red hue of the second gray scale data set drives the light source intensity A'n, m_R can be set to 0 signal.
  • the gray scale R'2 i,j of the red hue of the data set is set to 0, and the driving light source intensity A'n and m_R of the second gray scale data set are set to 0, which does not affect the overall result, so the pre- It is assumed that the driving light source intensity of the red hue when the second gray scale data group is displayed in the display area is set to 0, that is, the backlight R LED light source can be turned off, which can save energy.
  • the method before the step of acquiring the original grayscale data group of each pixel unit in the preset display area, the method further includes:
  • S110 dividing the display area of the liquid crystal display into not less than two display areas, and sequentially displaying The area is used as a preset display area.
  • the liquid crystal display driving can be realized by sequentially displaying each display area as a preset display area in a preset order.
  • the preset order may be the order of sorting first and then sorting the columns, or the order of sorting the advanced columns and then sorting them. In this way, the display sections of the entire liquid crystal display are driven by the liquid crystal display, thereby realizing the display driving of the entire liquid crystal display.
  • the original gray scale data set is decomposed into the first gray scale data group and the second gray scale data group according to the original gray scale data group of each pixel unit, the average gray scale of each hue, and the original light source intensity. And determining the intensity of the driving light source of each hue in the preset display area, comprising: if the gray levels of the respective hue in the preset display area are the same original gray level data set, the average gray level of each hue is the original The gray scale of each hue of the gray scale data group.
  • the original gray scale data group is decomposed into the first gray scale data group and the second gray scale data group, wherein the gray scale of each hue of the first gray scale data group is The maximum gray scale in the original gray scale data set, the gray scale of each hue of the second gray scale data set is 0 or the next largest gray scale in the original gray scale data set; according to the original light source intensity, the first gray scale data set And a second gray scale data set to determine the intensity of the driving light source of each hue in the preset display area.
  • the group is decomposed into (R1, G1, B1) and second grayscale data sets (R2, G2, B2) of the two frames (the first frame and the second frame) corresponding to the pixel unit.
  • the original gray scale data set is decomposed into two gray scale data sets, and two gray scale data sets are sequentially presented in time. That is, the original display duration of the original frame signal needs to be divided into two equal time segments, one of which presents the first grayscale data set and the other of the second grayscale data sets.
  • the side view brightness ratio corresponds to SR'%, LG'%, MB'%, where SR>LG>MB, and SR'>LG'>MB'.
  • the standard signal corresponds to the change in brightness to the relationship of the index screen 2.2.
  • the brightness ratios of the positive viewing angles of the respective frames of the first frame are determined to be 13.3%, 12.1%, and 12.1%, respectively, and the luminance ratios of the side viewing angles are respectively 39%. 41%, 49%.
  • the luminance ratios of the positive viewing angles of the hue of the second frame are respectively 0. %, 7.4%, 7.4%
  • side view brightness ratios were 0%, 34.7%, and 42.1%, respectively.
  • the display frame frequency needs to be doubled, and the display time of each frame is 1/2 of the original display time.
  • the original display duration of the original frame signal is T
  • it is decomposed into the sum of the time of the two frames on the time series.
  • the frame time after each decomposition is 1/2 of the original frame signal, the two decomposition timing diagrams are used.
  • the intensity of the frame-driven light source must be increased by one time, that is, the intensity of the driving light source of each of the R, G, and B phases is increased to twice the intensity of the original light source, so that the overall brightness is the same as that of the original frame.
  • the intensity of the original light source is A_R
  • the luminance ratio of the G hue and the B hue is A_R
  • the equivalent brightness is such that the dominant color tone is significantly increased relative to the other color tones, so that the side viewing angle is presented closer to the positive viewing angle.
  • the primary color tone is the hue corresponding to the maximum gray level in the original gray scale data group corresponding to the pixel unit.
  • the present application further provides a liquid crystal display driving device corresponding to the above method, including:
  • the original gray level obtaining module 520 is configured to obtain an original gray level data group of each pixel unit in which the content to be displayed is in the preset display area;
  • the average gray level determining module 530 is configured to determine an average gray level of each hue in the preset display area according to the original gray level data group;
  • the original light source obtaining module 540 is configured to acquire the original light source intensity of each hue of the content to be displayed in the preset display area;
  • the gray scale group decomposition module 560 is configured to decompose the original gray scale data group into the first gray according to the original gray scale data group of each of the pixel units, the average gray scale of each hue, and the intensity of the original light source. a step data group and a second gray scale data group, and determining a driving light source intensity of each hue in the preset display area; a gray level of each hue of the first gray level data group is in the original gray level data group The maximum gray scale of each of the second gray scale data sets is 0 or greater than the minimum gray scale of the original gray scale data set.
  • the liquid crystal display driving device divides the original gray scale data group into the first gray scale data group and the second gray scale data group, that is, the original frame signal corresponding to each pixel unit is multi-frame combined, and the first The gray scale of each hue of the gray scale data set is the maximum gray scale in the original gray scale data group; the gray scale of each hue of the second gray scale data set is 0 or greater than the minimum gray scale in the original gray scale data set.
  • the gray scale data of each hue in the original gray scale data group is displayed according to the data larger than the minimum gray scale in the original gray scale data group or directly not displayed, but in two groups.
  • the data color of the smallest gray scale in the original gray scale data set is not included in the middle, so that the difference in brightness of the color of the low gray level of the side view relative to the hue of the whole pixel unit is reduced, so that the side view character is close to the front view character phase, and the low color shift display is achieved.
  • the quality of the picture is presented.
  • the gray scale group decomposition module is further configured to: determine, when displaying the second gray scale data group, a gray scale corresponding hue of the average gray scale of the preset display area The drive source intensity is set to zero.
  • the method further includes:
  • the original time length obtaining module 670 is configured to obtain an original display duration of the original gray scale data group
  • the duration decomposition module 680 is configured to continuously display the first gray scale data group and the second gray scale data group within the original display duration.
  • the gray scale group decomposition module 560 includes a driving light source determining submodule 650 configured to determine respective hue in the preset display area according to the average gray scale of each hue. Driving light source intensity;
  • the gray scale group decomposition sub-module 660 is configured to decompose the original gray scale data group into a first gray scale according to an original gray scale data group of each of the pixel units, the original light source intensity, and the driving light source intensity. Data set and second gray scale data set.
  • the grayscale group decomposition submodule includes:
  • the gray level determining unit 761 is configured to set a maximum gray level of each hue of the pixel unit as a gray level of each hue of the first gray level data group;
  • the first brightness determining unit 763 is configured to determine a brightness ratio of the gray level of each hue of the first gray level data group to the full gray level according to the gray level of each hue of the first gray level data group;
  • the second brightness determining unit 765 is configured to determine, according to the brightness ratio of the gray level of each hue of the first gray scale data group to the full gray level, the intensity of the original light source, and the intensity of the driving light source. The ratio of the gray scale of each hue of the two gray scale data sets to the full gray scale.
  • the method further includes:
  • the area dividing module 610 is configured to divide the display area of the liquid crystal display into not less than two display areas, and sequentially use the display area as the preset display area.
  • the application also provides a computer device corresponding to the above method.
  • a computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor implementing the computer program to implement the steps of the display driving method described above.
  • liquid crystal display driving device and the display driving method correspond to each other, specific technical features corresponding to the above method in the device will not be described herein.
  • the computer device corresponds to the display driving method described above, and the technical features corresponding to the above method in the computer device are not described herein.
  • the display device is, for example, an LCD (Liquid Crystal Display) display device, an OLED (Organic Light-Emitting Diode) display device, a QLED (Quantum Dot Light Emitting Diodes) display device, a curved display device, or other display device.
  • LCD Liquid Crystal Display
  • OLED Organic Light-Emitting Diode
  • QLED Quadantum Dot Light Emitting Diodes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

L'invention concerne un procédé de commande d'affichage qui consiste : à acquérir des ensembles de données de niveaux de gris d'origine d'unités de pixel respectives dans une région d'affichage préétablie dans laquelle un contenu doit être affiché (S120) ; à déterminer, en fonction des ensembles de données de niveaux de gris d'origine, des niveaux de gris moyen de teintes respectives dans la région d'affichage préétablie (S130) ; à acquérir une intensité d'une source de lumière d'origine pour les teintes respectives dans la région d'affichage préétablie où le contenu doit être affiché (S140) ; à diviser, en fonction des ensembles de données de niveaux de gris d'origine des unités de pixel respectives, des niveaux de gris moyens des teintes respectives et de l'intensité de la source de lumière d'origine, les ensembles de données de niveau de gris d'origine en un premier ensemble de données de niveau de gris et en un second ensemble de données de niveau de gris, et à déterminer l'intensité d'une source de lumière commandée pour les teintes respectives dans la région d'affichage préétablie (S150), les niveaux de gris des teintes respectives dans le premier ensemble de données de niveaux de gris étant des niveaux de gris maximaux dans les ensembles de données de niveaux de gris d'origine, et les niveaux de gris des teintes respectives dans le second ensemble de données de niveaux de gris étant des niveaux de gris égaux à 0 ou minimaux parmi des ensembles de données de niveaux de gris non d'origine.
PCT/CN2017/115289 2017-10-10 2017-12-08 Procédé de commande d'affichage et appareil informatique WO2019071783A1 (fr)

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